) 
42G 
ply feathery; caryopsis oblong or cylindrical deciduous ; culms wiry or 
rigid; leaves involute, usually bearded at the throat ; their sheaths often 
inclosing the lateral panicles. 
12. Vilfa Vagin^eflora. Torrey. 
Syn. —Agrostis Virginica, Mulil—(not of Linn.) 
Culms slender, ascending, numerous; leaves involute, awl-shaped, 
somewhat rigid ; panicles simple and spiked, the lateral and often the 
terminal concealed in the sheaths ; paleae and glumes about equal ; only 
one-third longer than the linear caryopsis. Annual; flowers in Septem¬ 
ber ; culms 6 to 12 inches high. Dry gravely plaees, in Ohio, (Wm. S. 
Sullivant,) and Illinois (Dr. S. B. Mead.) 
GENUS 7. SPOROBOLUS. R. Brown. 
(Greek —Spora seed, and Ballo to cast forth.) 
Spikelets one or rarely two-flowered, in a contracted or open panicle ; 
paleae longer that the unequal glumes; stamens 2 to 3; grain a globular 
utricle, fcontaining a loose seed, deciduous. 
13. Sporobolus Junceus. Kunth. 
Syk.—A grostis juncea, Michx.; A. Indica Muhl.; Vilfa juncea, Trin. 
Leaves involute, narrow, rigid, the lowest elongated ; culm naked 
above, bearing a narrow, loose panicle ; glumes purple ovate, the lowest 
one-half as long as the upper, equaling the nearly equal paleae. Peren¬ 
nial ; flowers in August; culm 2 to 3 feet high. Eagle Prairie, Wis. 
✓ 
14. Sporobolus Heterolepsis. Gray. 
Syn.—V ilfa heterolepsis, Gray. 
Leaves involute-thread-form, rigid, the lowest as long as the culm, 
which is naked above; panicle pyramidal very loose, open, sparcely 
flowered, glumes very unequal, the lower awl-shaped, the upper ovate- 
oblong and taper-pointed and longer than the equal paleae. Perennial ; 
flowers in August; culms 1 to 2 feet high. 
Dry soil. Ohio, Illinois ; and on the St. Croix river, Wisconsin, (Dr. 
C. C. Parry. This plant omits a strong odor, like that of Eragrostis 
meg as t achy a. 
I 
